Spindle arranged at a textile machine



Aug. 3 1965 w. ZOLLINGER 3,203,643

SPINDLE ARRANGED AT A TEXTILE MACHINE Filed Feb. 20, 1955 INVENTOR. WAHER IZ'OIIMQER BY MAM/2w.

A TTORNE Y United States Patent 3,203,643 SPINDLE ARRANGED AT A TEXTILE MACHINE Walter Zoilinger, Horgen, Switzerland, assignor to Maschinenfabrik Schweiter AJG., Horgen, Switzerland Filed Feb. 20, 1963, Ser. No. 259,933 Claims priority, application Switzerland, Mar. 1, 1962, 2,563/ 62 6 Claims. (Cl. 2'4'2129.7 1)

The present invention broadly relates to textile machines and, more specifically, to an improved spindle arranged at a textile machine, particularly to a cop skewer or cop-receiving spindle for a winding machine Bobbin pins or cop-receiving spindles are already known to the art which permit reception of tubes or sleeves of different base internal diameters. Such devices are provided since, for example, the yarn according to quality and supplier are delivered on different tube members and the winding machine should be in a position to directly accommodate such tube members. In a known spindle construction there is provided a toggle joint movable with respect to a fixed spindle body which in dependency of the existing internal diameter of the tube member is deflected and presses such tube member against the spindle body. All of the heretofore known constructions have the disadvantage that the axes of the sleeves or tubes according to their diameter receive a different positioning-direction when they are clamped onto the spindle. The drawing-off of the yarn which proceeds in a continuous, uniform direction with respect to the stationary spindle body can thus be sensitively disturbed.

Thus, the present invention has as one as its primary objects to provide a spindle construction which enables these disadvantages to be effectively overcome.

The spindle designed according to the present invention is manifested in the feature that the toggle or knee joint or linkage exhibits compensation means which in clamped condition pivots or rocks the sleeve member or tube in dependence upon its internal diameter with respect to the spindle body. This is carried out for the purpose of directing the axes of the sleeves or tube members of different diameters towards a common predetermined point or location.

Another important object of the present invention is to provide an improved spindle construction capable of handling yarn carrying tube or sleeve members of various diameters with a minimum of disturbance to the processing of the yarn.

Still another important object of this invention is the provision of a spindle construction at a textile machine for receiving tube members of varying internal diameters at their base, each of which carry a yarn package, including means for rocking the tube members, if necessary, such that the respective axis thereof will be directed towards a common reference location, so that the yarn can be handled with a minimum of disturbance even though carried on different size tube members.

Yet a further important object of the present invention is to provide a spindle construction for receiving yarn carrying tube members of different internal diameters comprising a spindle member adapted to receive a tube member carrying a yarn package, means for supporting said spindle member for movement into a first position for removal of a yarn carrying tube member and into "ice a second position corresponding to a working position, control means for moving said spindle member through said first and second positions, and means cooperating with said control means for permitting withdrawal of a tube member from said spindle member when moved into said first position and for aligning the axis of said tube member approximately towards a reference location and clamping said aligned tube member when said spindle member is positioned in said working position.

These and still further objects and the entire scope of applicability of the present invention will become apparent from the detailed description given hereinafter; it should be understood, however, that the detailed description and specific example, while indicating a preferred embodiment of the invention, is given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.

In the drawing:

FIGURE 1 is a perspective view of the spindle designed according to the present invention illustrated in its working or operative position;

FIGURE 2 is a perspective view of the spindle depicted in FIGURE 1 illustrated in its pivoted or rocked position;

FIGURE 3 is a fragmentary view of the spindle device shown in FIGURE 1, here also illustrated in its working or operative position, yet showing how such spindle device aligns two tube members of different diameter towards a common reference locations; and

FIGURE 4 is an enlarged, fragmentary view of a portion of the toggle lever arrangement in clamped position relative to the tube member.

Referring now to the drawing, reference numeral 1 designates a bracket or support which is suitably attached to the frame of the winding machine. A spindle carrier or holder 3 is arranged for pivotable movement about a pin 2 mounted on the bracket 1. The spindle holder 3 supports a spindle body or pin member 5 connected thereto by screws 4 by way of example. Additionally, a doublearm lever 7 is pivotally or rockably connected to the spindle holder 3 by means of the pin or plug member 6 threadably connected to said spindle hold- 3. The one arm or lever 8 of the double-arm lever 7 extends or projects into a longitudinal slot 16 provided at the spindle body 5. The other arm 9 of the doublearm lever 7, enclosing an angle of approximately with the arm member 8, serves for actuation purposes, as will be more fully explained shortly.

A tension spring 11 engages at one end with the arm member 9 and is appended at its other end to a bolt member 12. The bolt member 12 is threaded or otherwise secured to the bracket 1 and can be locked at its upper end 12a by means of a nut member 13 or suitable expedient. The end 12a of the bolt member 12 forms an adjustable stop for a cooperating pin member 14 mounted to the spindle holder 3 and is displaceable with such spindle holder 3 about the pin member 2.

The lever or arm 8 of the double-arm lever 7 is provided at its free end 8a with a fork-like or bifurcated construction and is hingedly connected to a link or lever 16; more specifically, through the agency of a pin 15 fastened to the lever 16 which extends through slots 17 provided on the fork-shaped end 8a of the arm 8. The lever 16 is pivotably mounted in the slot 10 of the spindle body 5 through the intermediary ot a bolt member 18 and possesses a free compensation arm 19 (see FIGURES 1 and 4). Additionally, a transmission lever 21 is pivotably mounted to the bracket 1 by means of a journal pin 20. The transmission lever 21 is specifically provided for operable cooperation with the actuating arm 9 of the doublearm lever 7, with said transmission lever 21 being actuated by a control arm 22 which rides on a control shaft 23.

In FIGURE 2 the spindle body is shown in that position which it assumes when the actuating or control arm 22 or the transmission lever 21 is pivoted or rocked into the position illustrated in phantom lines by means of the control shaft 23. During movement into this position the transmission lever 21 pivots the double-arm lever 7 via its arm 9 against the action of the spring 11. The pivoting of the double-arm lever 7 relative to the spindle holder 3 is limited by the stop pin 14 against which the arm 9 abuts. With a further pivoting of the transmission lever 21 the spindle holder 3 is entrained via the stop pin 14 and pivoted about the pivot pin or plug 2, so that the spindle body 5 is rocked and assumes the position illustrated in FIGURE 2.

With pivoting of the double-arm lever 7 the lever 16 is also pivoted via the arm 8, whereby the location of the stop pin 14 is so selected that the arm 9 then comes to bear against said pin when the knee or toggle link formed of the lever members 8 and 16 is elongated or extended and is thereby completely sunk or disposed in the slot 10 of the spindle body 5. In this position of the toggle link or lever, as shown in FIGURE 2, an empty tube or sleeve member H or H (FIGURE 3) can be drawn-01f or stripped from the spindle body 5. This can take place for example, by means of non-illustrated, automatically actuated means in a manner familiar to those skilled in the art.

The control shaft 23 which for example can likewise be automatically controlled, is pivoted in clockwise direction after stripping-off the tube or sleeve member from the spindle body 5 to such an extent that the spring 11 can pivot the spindle holder 3 via the arm 9 into that position in which the stop pin 14 comes to rest against the stop 12a. As a result, the spindle body 5 is returned into its working or operative position in which a full tubing can be slipped onto said spindle body, since the knee or toggle link is still held in its extended position via the transmission lever 21 or the control arm 22. A soon as a new, full tube member is slipped onto the spindle body 5, there results a release of the toggle link or lever via the transmission lever 21 and control arm 22. Under the action of the spring 11 the double-arm lever 7 is pivoted in clockwise direction until the nose 16a of the lever 16 rests against the confronting wall of the tube member.

In the case of the tube member H one is concerned with a tube member of the type possessing a relatively small base diameter, that is, with respect to the axial direction of this tube member no correction is necessary in that, the axis A thereof upon bearing of the inner wall of said tube member against the spindle body 5 under the influence of the nose 16a, which forms a clamping point or nip, is automatically directed towards a predetermined point P for the yarn travel. In the aforedescribed situation, the toggle link assumes the position shown in full lines in FIGURE 3 with respect to the tube member H. Small or insignificant deviations of the axis direction with respect to this point P, which can occur with tube members of insignificantly increased or decreased base diameters, do not have any influence upon the yarn withdrawal conditions.

' However, if the base diameter for example is 1.5 times that of the tube member I-I then already relatively considerable deviations appear. In this range the compensation arm 19 now becomes operative, which with larger diameters of the tube members moves out of the spindle body 5 and thereby becomes effective as a clamping location by means of its nose 19a (see FIGURE 4). This situation is illustrated with reference to the tube member H, wherein the position of the toggle link is shown in chain-dot lines in FIGURE 3. The tube H is pivoted or rocked by the compensation arm 19 with respect to the spindle body 5 to such an extent that its axis A passes through the point P when the nose member 19a clampingly engages the confronting inner wall of the tube member H. The nose members 16a and 19a may possibly slightly penetrate the inner surface of the tube H under the action of the spring 11 in order to increase the restraining force, that is to say, during application of a pulling force at the tube member H which is directed upwardly the clamping action is increased due to the wedging action of the lever portions 16, 19.

The dimensions of the lever portions 16 and 19 are so selected that the respective axis of a tube member for every diameter lying within a predetermined range is automatically directed to or approximately to the reference point P. Thus, for every tube diameter it is thereby possible to guarantee for a flawless or practically flawless yarn withdrawal operation.

While there is shown and described a present preferred embodiment of the invention it is to be distinctly understood that the invention is not limited thereto but may be otherwise variously embodied and practised within the scope of the following claims.

Having thus described the present invention, what is desired to be secured by United States Letters Patent is:

1. A spindle construction for textile machines adapted to receive a thread carrying tube member, said construction comprising:

a spindle body adapted to receive individual tube members having internal diameters of variable sizes; clamping means coupled to said spindle body to secure a tube member thereon; said clamping means including a lever pivotally mounted on said spindle body and having at least one free and; a link pivotally attached between it ends to said spindle body and thus having a first and a second free and; said first link free end and said lever free end being pivotally attached to one another; and,

means for operating said clamping means to move said pivotally attached free ends away from said spindle body to clamp the internal wall of a tube member mounted upon said spindle body, while simultaneously moving said link second free end away from said spindle body and into contact with the internal wall on the opposite side of said spindle body;

said spindle construction being operative in such a manner that, regardless of the diameter of the tube member clamped on said spindle body, the central axis of such tube member will be directed toward a common point disposed above said spindle body.

2. A spindle construction according to claim 1 wherein each of said link free ends is provided with a clamping nose which engages the inner wall of said tube member to pivot the same and thus defines a clamping point at said engaged inner wall.

3. A spindle construction according to claim 1 wherein said operating means includes spring means normally biasing said lever to urge said clamping means into an operative position.

4. A spindle construction according to claim 3 wherein said spindle body is pivotally mounted and wherein control means is provided for pivoting said lever conjointly with said spindle body against the action of said spring means.

5. A spindle construction according to claim 1 wherein said spindle body is pivotally mounted and wherein said spindle body is provided with a longitudinal slot and said lever is constructed for movement into extended and pivotal positions, respectively, said lever in extended position being completely disposed within said slot and in pivotal position having a portion thereof located outside of said slot, cooperating stop means provided for said lever and said spindle body, and control means for operating said lever which when in extended position transmits a moment of rotation upon said spindle body via said cooperating stop means.

6. A spindle construction according to claim 5; said control means including a transmission lever.

References Cited by the Examiner 2,554,148 5/51 Kenneford 242l30.2

6 OTHER REFERENCES Schlafhorst Autoconer Manual (German Edition), pages 1372d, 1389d, 1457d, 1462d, received in Us. Patent Office on June 13, 1962, individual pages dated October 1961.

Schlafhorst Autoconer Manual (English Edition), pages 1372s, 1389c, 1457e, 1462c, received in US. Patent Office on June 13, 1962, individual pages dated April 1962.

MERVIN STEIN, Primary Examiner.

RUSSELL C. MADER, Examiner. 

1. A SPINDLE CONSTRUCTION FOR TEXTILE MACHINES ADAPTED TO RECEIVE A THREAD CARRYING TUBE MEMBER, SAID CONSTRUCTION COMPRISING: A SPINDLE BODY ADAPTED TO RECEIVE IDIVIDUAL TUBE MEMBERS HAVING INTERNAL DIAMETERS OF VARIABLE SIZES; CLAMPING MEANS COUPLED TO SAID SPINDLE BODY TO SECURE A TUBE MEMBERS THEREON; SAID CLAMPING MEANS INCLUDING A LEVER PIVOTALLY MOUNTED ON SAID SPINDLE BODY AND HAVING AT LEAST ONE FREE AND; A LINK PIVOTALLY ATTACHED BETWEEN IT ENDS TO SAID SPINDLE BODY AND THUS HAVING A FIRST AND A SECOND FREE AND; SAID FIRST LINK FREE END AND SAID LEVER FREE END BEING PIVOTALLY ATTACHED TO ONE ANOTHER; AND; 